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    Phosphor, method of manufacturing it and plasma display panel containing this phosphor
    2.
    发明公开
    Phosphor, method of manufacturing it and plasma display panel containing this phosphor 有权
    荧光体，其制备方法和等离子屏幕，含有这些荧光体

    公开(公告)号：EP1513182A3

    公开(公告)日：2009-09-02

    申请号：EP04255276.0

    申请日：2004-09-01

    申请人： Panasonic Corporation

    发明人： Sakai, Masahiro ,  Zukawa, Takehiro ,  Shiraishi, Seigo

    IPC分类号： H01J1/63 ,  C09K11/64

    CPC分类号： H01J1/63 ,  C09K11/7706

    摘要： The present invention aims to provide a Eu-activated phosphor that maintains high wavelength conversion efficiency and suppresses deterioration with time due to vacuum ultraviolet irradiation, as well as a plasma display panel having superior display performance by suppressing sticking image caused by deterioration of the phosphor with time.
    To this end, the present invention provides a europium-activated phosphor where a divalent europium ratio of each phosphor particle constituting the phosphor is lower at and in a vicinity of a particle surface than for the particle as a whole.
    With such phosphor particles, it is possible to obtain the Eu-activated phosphor that has high maintaining ratio of emission intensity and high performance in suppressing deterioration with time in comparison with a conventional phosphor.